Automatic window ventilator



Nov. 29, '1927.

D. J. DE GRASSE AUTOMATIC WINDOW VENTILATOR Filed March 19, 1927 VE Jam s/fie 61% I I ;....I

NTOR .556

ATTORNEY WITNESSES Patented Nov. 29, 1927.

ITED ewesv nAniE :i. m: enliss'n, OF NEW YORK, n. Y.

.aemeame 'wmnow vsnmrnaroa Applieation filed'March'lS,1927; Serial No. 176,136.

This invention relates to ventilators and has for an obj ect to provide an automatically actuated ventilator designed'to be used with double hung windows for the purpose of allowingfreshair to enter a room while.

V a slot 13 which accommodates the screw 14,

preventing rain or snow from entering.

'Anotherobject of thei'nvention is to pro vide an" automatically" shifted ventilator which actsto deflect the air upwardly into a room and thereby prevent a directdraught from the window acrossthe room.

A furtherobjec't, more specifically, is to provide a sliding and swinging ventilator 'fordouble hung windows with means coa'ctingwith the window and frame whereby when thewindow is raised the ventilator is permitted to swing so that the lower edge will be beneath the window sash.

i ,In the accompanying drawing-- Figure 1 is a, fragmentary vertical sectional view through a window anda venti latordisclosing an embodimcntof the invention. I v

Flgure 2 shows the window sash and ventilator when in a partly- ,ClOSGClCOIldltlOIL Figure?) is asectional View through Figure 1, approximately on line3-3.

Referring to the accompanying drawing by numerals, 1 indicates the window structure as a whole, saidwmdow'structure being pro;

vided withwhahmay be termed an inside sill 2 and an outside sill 3 offset from thesill 2 so as to forma shoulder or abutment 4.; A

sash -5 ismounted to slide on suitable runways 6 and to move downwardly and fit against the sill 8' as well as against theshoulder 4 when thesash is closed. The structure just described is oldand well known and, therefore, forms now part of the present in-" vention but is described and illustrated to j disclose how the ventilator 7 may function.

This ventilator is'provided with a plate 8 on each side of the window as illustrated in- Figure 3, said plates being identical except that the arts are made right and left. In view of'tliisfact the description of one will ap lyto both. Y

lator is in full functioning position, will occupy the upper part of leg 11 and when in non-functioning position, will occupy one end of .leg 10. The screw 12 is screwed into part of the window frame'of window 1 with the headoverlapping part of plate 8 so that the screwt12 assists in controlling .the'up and down andswinging movement of plate '8. This plate is also provided with 8. The trigger17 is substantially U-shaped in cross section at the outer part thereof and straddles the flange 19 when the parts have reached-the position shown in Figure 2. i

Y By reason of this structure, when the sash 5 is moved completely down against the sill 3, the sash will press against the trigger 17 and swing thetrigger-17, flange 19, plate Sand associated parts to the dotted position shown in Figure 2. The plate 8 is pro-' vided with afiange 20 against which the glass panel 21rests.- This flange at the lower end is turned up for forming a socket E22 designed to receive the lower edge of the panel 21 and support the panel. At the upper end theplate S is provided with a pivotally mounted member 23 having ade- FIC E.

pending flange 24 formed with a bent car 25 adapted to press against the upper part of the glass panel :21 for holding the same against the flange 20. By swinging the member 23 upwardly: as shown in dotted lines inFigure 1, the glass panel 21 may be readily removed at any time and replaced.

When the parts are mounted in position and the window is closed, the ventilator structure will assume the position shown in dotte'd'lines in Figure 2. 'As the window is raised, the lower part of the sash will move away from thetrigger 17 and, consequently, the plate 8 and associated parts will swing on screw 14 until it assumes the position shown in Figure 2." A further upward movement of the sash 5, as for instance, a movement which will'bring the'sash to the position shown in Figure 1, will causescomplete release of trigger 17 andassociated parts whereby they will swing on screw 14 and also move downwardly guided by both of the'screws 12 and'14. This additional swinging movement from the position shown in Figure 2 and'the downward movement,

will result in the lower edge of the glass 7 panel 21 moving below the upper edge of the shoulder at. This will positively prevent the entrance of rain or snow while permittin the free entrance of air, which air is def ected upwardly. The respective plates 8 and associated parts move freely and automatically as the sash 5 is moved upwardly and downwardly. \Vhen the sash is moved from the position shown in Figure 1 upwardly, the ventilator will not move and in fact, will not more until the sash is moved down suliiciently to engage the trigger 17 whereupon a further downward movement will begin to raise theventilator and then swingthe same inwardly. On opening the window, the first few inches oi raising of the sash will permit the ventilator to auton'iatically, and under the action of gravity, move downwardly and swing to the position shown in Figure 1 so that the window is still closed as tar as rain and sno are concerned but is open for the passage of air in an upward direction. It will be noted that the plates 8 act as hangers as well as plates whereby air cannot pass the ends oi. the ventilator and also whereby the ventilator is properly suspended for up and down and swinging movement as described.

\Vhat I claim is:

1. A ventilator for a double hung win dow, comprising end plates acting as hangers, a deflecting member connecting said end plates, means for slidingly and pivotally supporting said end plates, and means operated. by the window sash for raising said end plates and swinging the some out of the way when the sash is closed, said means acting to cause the ventilator to move dowmvardly and swing out 'ardly when the window is opened,said means including a link pivotally connected to the upper part of each of said end plates, and a sash operated trigger pivotally connected to each of said end plates near the lower part thereof, and means for pivotally connecting the lower ends of the respective links to the respective triggers.

2. A ventilator for windows, comprising a pair of vertically movable and mvingable plates, lever mechanism including a pivot ally mounted trigger actuated by the window sash for moving said swingable plates upwardly and then swinging the same out of the way of the window sash, said plates being moved by gravity downwardly and in the opposite direction, and a panel connecting said plates for deflecting air upwardly.

3. A window ventilator, comprising :1

deflecting plate, a pair of hangers for su porting said plate, means for swingab y and slidably supporting said hangers, said means for causing the hangers to swing so that the lower edge of said plate will move outwardly and then downwardly below the outer window sill, and lever mechanism including a pivotally mounted trigger actuated by the window sash for moving said hangers upwardly and then swinging the same out of the way of the window sash.

4. A ventilator, comprising a pair of swinging and vertically slidable plates, each plate having a pair of slots,one slot being normally vertical and the other slot being formed with legs at right angles, one leg being vertical and the other horizontal, a supporting pin extending through each of said slots for limiting the vertical sliding movement of the plates and also limiting the swinging movement thereof, a panel carried by said plates for deflecting the air, said plates and panel being movable downwardly under the action of gravity and then swingable in one direction under the action of gravity, and a lever mechanism including a trigger operated by a window sash for raising said plates and associated parts and then swinging the same in the opposite direction to the gravity swinging movement.

5. In an automatically actuated ventilator, a pair of end plates, each plate being provided with an L-shaped slot in the center, a vertically positioned slotnear the top and an arc-shapedslot near the bottom,

a screw for each of the first two named slots for swingablyland slidably mounting the screw passing through the vertical slot, a

trigger pivotally mounted on each. plate.

near the lower end, and a pin carried by said trigger extending through the lower end of said link and through said arc-shaped.

slot.

6. In an automatic window ventilator, a pair of side plates, a connecting panel, means for mounting the side plates so as to permit an up and'down and swinging movement and a lever mechanism for mowing the plates upwardly and swinging the plates in one direction, said lever structure. including a link pivotally connected with each plate near the top, a trigger pivotally connected with each plate near the bottom, and a pivotal connection between the. link and DANIEL J. on onassn. 

